// let Count: 100|200 
// Count = 100
// Count = 2

type Gender = '男' | '女'

let gender: Gender = '男'
gender = '女'
// 什么场景会用到字面量联合类型?
// 性别, 学历, 政治面貌....

// 3. 思考
let str1 = 'my name is jack'
str1 = '2121'

const str2 = 'my name is rose'
// str2 = '22121'
export { gender, str1, str2 }
